<template>
  <div style="text-align:center;font-size:40px;padding:4rem;">  
  <el-upload
    class="avatar-uploader"
    :action="uploadUrl"
    :show-file-list="false"
    drag:true
    :on-success="handleAvatarSuccess"
    :before-upload="beforeAvatarUpload">
    <img v-if="imageUrl" :src="imageUrl" class="avatar">
    <i v-else class="el-icon-plus avatar-uploader-icon"></i>
  </el-upload>
</div>
</template>

<script>
  export default {
    name:'Person',
    data() {
      return {
        imageUrl: '',
        uploadUrl:this.$config.BASE_URL+this.$config.API.UPLOAD,
        msg:'Hello'
      };
    },
    methods: {
      handleAvatarSuccess(res, file) {
        this.imageUrl = URL.createObjectURL(file.raw);
      },
      beforeAvatarUpload(file) {
        const isImg = [ 'image/jpeg','image/png','image/gif','image/x-icon','image/svg','image/bmp'].includes(file.type);
        const isLt2M = file.size / 1024 / 1024 < 2;
        if (!isImg) {
          return this.$message.error('上传头像图片格式不正确!');
        }
        if (!isLt2M) {
          return this.$message.error('上传头像图片大小不能超过 2MB!');
        }
        return true;
      }
    },
  }
</script>

<style>
.avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }
  .avatar {
    width: 178px;
    height: 178px;
    display: block;
  }
</style>